Quant Questions

1

Consider the set S = {1, 2, 3,..., 1000}. How many arithmetic progressions can be formed from the elements of S that start with 1 and end with 1000 and have at least 3 elements?

  1. 3
  2. 4
  3. 6
  4. 7
2

For a Fibonacci sequence, from the third term onwards, each term in the sequence is the sum of the previous two terms in that sequence. If the difference in squares of 7th and 6th terms of this sequence is 517, what is the 10th term of this sequence?

  1. 76
  2. 108
  3. 123
  4. 147
3

Fourth term of an arithmetic progression is 8. What is the sum of the first 7 terms of the arithmetic progression?

  1. 7
  2. 35
  3. 56
  4. 64
4

If the harmonic mean between two positive numbers is to their geometric mean as 12 : 13; then the numbers could be in the ratio

  1. 12 : 13
  2. 4 : 9
  3. 2 : 3
  4. 1/12 : 1/13
5

The number of common terms in the two sequences 17, 21, 25,..., 417 and 16, 21, 26,..., 466 is

  1. 19
  2. 20
  3. 77
  4. 78
6

The integers 1, 2,..., 40 are written on a blackboard. The following operation is then repeated 39 times: In each repetition, any two numbers, say a and b, currently on the blackboard are erased and a new number a + b - 1 is written. What will be the number left on the board at the end?

  1. 821
  2. 820
  3. 819
  4. 781
7

If p, q and r are three unequal numbers such that p, q and r are in A.P., and p, r-q and q-p are in G.P., then p : q : r is equal to

  1. 1 : 2 : 3
  2. 2 : 3 : 4
  3. 3 : 2 : 1
  4. 1 : 3 : 4
8

Seema has joined a new Company after the completion of her B.Tech from a reputed engineering college in Chennai. She saves 10% of her income in each of the first three months of her service and for every subsequent month, her savings are Rs. 50 more than the savings of the immediate previous month. If her joining income was Rs. 3000, her total savings from the start of the service will be Rs. 11400 in

  1. 6 months
  2. 12 months
  3. 18 months
  4. 24 months
9

The sum of series, (–100) + (–95) + (–90) + …………+ 110 + 115 + 120, is:

  1. 0
  2. 220
  3. 340
  4. 450
  5. None of the above
10

An infinite geometric progression a1, a2, a3,... has the property that an = 3(an+1 + an+2 +…) for every n ≥ 1. If the sum a1 + a2 + a3 + … = 32, then a5 is

  1. 1/32
  2. 2/32
  3. 3/32
  4. 4/32
11

The Maximum Retail Price (MRP) of a product is 55% above its manufacturing cost. The product is sold through a retailer, who earns 23% profit on his purchase price. What is the profit percentage (expressed in nearest integer) for the manufacturer who sells his product to the retailer? The retailer gives 10% discount on MRP.

  1. 31%
  2. 22%
  3. 15%
  4. 13%
  5. 11%
12

A dealer offers a cash discount of 20% and still makes a profit of 20%, when he further allows 16 articles to a dozen to a particularly sticky bargainer. How much percent above the cost price were his wares listed?

  1. 75%
  2. 66 2/3%
  3. 100%
  4. 80%
13

A contractor estimates that a job will earn him Rs 8400. His estimate covers material, labour and 5% profit. The cost of material and labour is in the ratio of 3 : 7. When the contractor begins his job, however, he discovers that the cost of material has increased by 10% and the labour cost has risen by 15%. Calculate his loss percent

  1. 7.36%
  2. 7.59%
  3. 7.49%
  4. 7.39%
14

A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is

  1. 4%
  2. 6.25%
  3. 20%
  4. 25%
15

A merchant has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity sold at 18% profit is

  1. 640 kg
  2. 400 kg
  3. 600 kg
  4. 560 kg
16

A trader makes a profit equal to the selling price of 75 articles when he sold 100 of the articles. What % profit did he make in the transaction?

  1. 100%
  2. 200%
  3. 250%
  4. 300%
17

After allowing a discount of 11.11%, a trader still makes a gain of 14.28%. At how many percentage above the cost price does he mark on his goods?

  1. 16%
  2. 22.22%
  3. 28.56%
  4. 35%
18

A shop, which sold same marked price shirts, announced an offer - if one buys three shirts then the fourth shirt is sold at a discounted price of ₹100 only. Patel took the offer. He left the shop with 20 shirts after paying ₹20,000. What is the marked price of a shirt?

  1. ₹1260
  2. ₹1300
  3. ₹1350
  4. ₹1400
  5. ₹1500
19

The manufacturer of a table sells it to a wholesale dealer at a profit of 10%. The wholesale dealer sells the table to a retailer at a profit of 30%. Finally, the retailer sells it to a customer at a profit of 50%. If the customer pays Rs 4290 for the table, then its manufacturing cost (in Rs) is

  1. 1500
  2. 2000
  3. 2500
  4. 3000
20

Mayank buys some candies for Rs 15 a dozen and an equal number of different candies for Rs 12 a dozen. He sells all for Rs 16.50 a dozen and makes a profit of Rs 150. How many dozens of candies did he buy altogether?

  1. 50
  2. 30
  3. 25
  4. 45
21

If a seller gives a discount of 15% on retail price, she still makes a profit of 2%. Which of the following ensures that she makes a profit of 20%?

  1. Give a discount of 5% on retail price
  2. Give a discount of 2% on retail price
  3. Increase the retail price by 2%
  4. Sell at retail price
22

In a test, a candidate attempted only 8 questions and secured 50% marks in each of the questions. If he obtained a total of 40% in the test and all questions in the test carried equal marks, how many questions were there in the test?

  1. 8
  2. 10
  3. 15 
  4. 16
23

The monthly incomes of Peter and Paul are in the ratio of 4:3. Their expenses are in the ratio of 3:2. If each saves Rs. 6,000 at the end of the month, their monthly incomes respectively are (in Rs.)

  1. 24,000 and 18,000
  2. 28,000 and 21,000
  3. 32,000 and 24,000
  4. 34,000 and 26,000
24

Two equal glasses of same type are respectively 1/3 and 1/4 full of milk. They are then filled up with water and the contents are mixed in a pot. What is the ratio of milk and water in the pot?

  1. 9 : 21
  2. 11 : 23
  3. 7 : 17
  4. 1 : 3
25

A cow costs more than 4 goats but less than 5 goats. If a goat costs between Rs. 600 and Rs. 800, which of the following is a most valid conclusion?

  1. A cow costs between Rs. 2,600 and Rs. 3,800.
  2. A cow costs less than Rs. 3,600.
  3. A cow costs more than Rs. 2,500.
  4. A cow costs between Rs. 2,400 and Rs. 4,000.
26

A father is nine times as old as his son and the mother is eight times as old as the son. The sum of the father's and the mother's age is 51 years. What is the age of the son?

  1. 3 years
  2. 4 years
  3. 7 years
  4. 5 years
27

A person ordered 5 pairs of black socks and some pairs of brown socks. The price of a black pair was thrice that of a brown pair. While preparing the bill, the bill clerk interchanged the number of black and brown pairs by mistake which increased the bill by 100%. What was the number of pairs of brown socks in the original order?

  1. 15
  2. 25
  3. 10
  4. 20
28

In a 500 metres race, B starts 45 metres ahead of A, but A wins the race while B is still 35 metres behind. What is the ratio of the speeds of A to B assuming that both start at the same time?

  1. 25:20
  2. 25:21
  3. 5:7
  4. 5:3
29

Two cities A and B are 360 km apart. A car goes from A to B with a speed of 40 km/hr and returns to A with a speed of 60 km/hr. What is the average speed of the car?

  1. 48 km/hr
  2. 55 km/hr
  3. 50 km/hr
  4. 45 km/hr
30

Two pipes A and B can independently fill a tank completely in 20 and 30 minutes respectively. If both the pipes are opened simultaneously, how much time will they take to fill the tank completely?

  1. 25 minutes
  2. 10 minutes
  3. 12 minutes
  4. 15 minutes
31

Out of 130 students appearing in an examination, 62 failed in English, 52 failed in Mathematics, whereas 24 failed in both English and Mathematics. The number of students who passed finally is

  1. 40
  2. 50
  3. 55
  4. 60
32

In a box of marbles, there are three less white marbles than the red ones and five more white marbles than the green ones. If there are a total of 10 white marbles, how many marbles are there in the box?

  1. 28
  2. 36
  3. 26
  4. 32
33

In a parking area, the total number of wheels of all the cars (four-wheelers) and scooters/motorbikes (two-wheelers) is 100 more than twice the number of parked vehicles. The number of cars parked is

  1. 35
  2. 45
  3. 50
  4. 55
34

In a group of persons travelling in a bus, 6 persons can speak Tamil, 15 can speak Hindi and 6 can speak Gujarati. In that group none can speak any other language. If 2 persons in the group can speak two languages only and one person can speak all the three languages, then how many persons are there in the group?

  1. 21
  2. 22
  3. 23
  4. 24
35

In a town, 45% population read magazine A, 55% read magazine B, 40% read magazine C, 30% read magazines A and B, 15% read magazines B and C, 25% read magazines A and C; and 10% read all the three magazines. What percentage do not read any magazine?

  1. 15%
  2. 25%
  3. 10%
  4. 20%
36

Each of A, B, C and D has Rs 100. A pays Rs 20 to B, who pays Rs 10 to C, who gets Rs 30 from D. In this context, which one of the following statements is not correct?

  1. D is the poorest
  2. C is the richest
  3. B is richer than D
  4. C has more than what A and D have together
37

Let the sum of the first three terms of an A.P. be 39 and the sum of its last four terms be 178. If the first term of this A.P. is 10, then the median of the A.P. is:

  1. 26.5
  2. 28
  3. 29.5
  4. 31
38

If the 2nd, 5th and 9th terms of a non-constant A.P. are in G.P., then the common ratio of this G.P. is:

  1. 4/3
  2. 1
  3. 7/4
  4. 8/5